H03C1/00 - CPC Classification Index

ClassID:

218835 ⎘

H03C1/00 - CPC Classification

Classification description:

Amplitude modulation

Sub-classes:

H03C1/02 » Details 13
H03C1/08 » by means of variable impedance element 11
H03C1/16 » by means of discharge device having at least three electrodes 2
H03C1/28 » by means of transit-time tube 0
H03C1/32 » by deflection of electron beam in discharge tube 0
H03C1/34 » by means of light-sensitive element 7
H03C1/36 » by means of semiconductor device having at least three electrodes 60
H03C1/46 » Modulators with mechanically or acoustically driven parts 14
H03C1/48 » by means of Hall-effect devices 0
H03C1/50 » by converting angle modulation to amplitude modulation 8
H03C1/52 » Modulators in which carrier or one side-band are wholly or partially suppressed 7
H03C1/62 » Modulators in which amplitude of carrier component in output is dependent upon strength of modulating signal, e.g. no carrier output when no modulating signal is present 34

Recent Application in this class:

20230327606

2023-10-12

PHYSIOLOGICAL SIGNAL DETECTION SYSTEM

20200295711

2020-09-17

Amplification apparatus and transmission apparatus

20180041372

2018-02-08

Waveform synthesis for RFID transmitters

20160226685

2016-08-04

Modulated signal generating device and wireless device

20150333717

2015-11-19

Methods and apparatus for processing audio signals

20150318823

2015-11-05

Demodulation device, and demodulation integrated device and modulation and demodulation integrated device using the same

20150229271

2015-08-13

Current driven floating driver circuit

20150006343

2015-01-01

Power supply device, power receiving device and billing method

20150002090

2015-01-01

Power supply device, power receiving device, charging system, and obstacle detection method

#10

20140375388

2014-12-25

High speed power supply system

#11

20140368053

2014-12-18

Method and apparatus for setting frequency of wireless power transmission

#12

20140346890

2014-11-27

Feed unit and feed system for non-contact power transmission

#13

20140300426

2014-10-09

Quadrature power amplifier having increased efficiency

#14

20140126671

2014-05-08

Digital quadrature transmitter using generalized coordinates

#15

20140114191

2014-04-24

Structured random permutation pulse compression systems and methods

#16

20140091861

2014-04-03

High speed power supply system

#17

20130304459

2013-11-14

Methods and apparatus for processing audio signals

#18

20130243120

2013-09-19

ASK modulator and transmitter having the same

#19

20130222034

2013-08-29

High speed pulse shaping technology

#20

20130034193

2013-02-07

Method and device for demodulating complex carriers

#21

20120300872

2012-11-29

In-band data communication system using wireless power

#22

20120243708

2012-09-27

Modulation of audio signals in a parametric speaker

#23

20110227784

2011-09-22

System employing a direct digital synthesiser

#24

20100295628

2010-11-25

Apparatus, method and computer program

#25

20100250993

2010-09-30

High speed power supply system

#26

20100109789

2010-05-06

Radio frequency amplifier with digital amplitude modulation and method for controlling the delivering of power

#27

20070273577

2007-11-29

Transmission signal generating unit and radar transmission device using the same

#28

20070014381

2007-01-18

Polar loop radio frequency (RF) transmitter having increased dynamic range amplitude control

#29

20060252388

2006-11-09

Digital amplitude modulation transmitter with pulse width modulating RF drive

#30

20060109061

2006-05-25

System and method for narrow bandwidth amplitude modulation